AbstractView.java

package timeflow.views;

import javax.swing.*;

import timeflow.data.db.ActDB;
import timeflow.model.*;

import java.awt.*;

// superclass of all timeline views
public abstract class AbstractView extends ModelPanel
{
	protected boolean ignoreEventsWhenInvisible=true;
	JPanel panel;
	ActDB lastDrawn, lastNotified;
	
	public AbstractView(TFModel model)
	{
		super(model);
	}
	
	public void paintComponent(Graphics g)
	{
		g.drawString(getName(), 10,30);
	}
	
	public final JComponent getControls()
	{
		if (panel!=null)
			return panel;
		
		panel=new JPanel();
		panel.setLayout(new BorderLayout());
		panel.add(_getControls(), BorderLayout.CENTER);
		JLabel controlLabel=new JLabel(" "+getName()+" Controls")
		{
			public Dimension getPreferredSize()
			{
				return new Dimension(30,30);
			}
		};
		controlLabel.setBackground(Color.lightGray);
		controlLabel.setForeground(Color.darkGray);
		panel.add(controlLabel, BorderLayout.NORTH);

		return panel;
	}
	
	protected JComponent _getControls()
	{
		return new JLabel("local: "+getName());
	}
	public abstract String getName();
	protected abstract void _note(TFEvent e);
	protected abstract void onscreen(boolean majorChangeHappened);
	
	
	@Override
	public final void note(TFEvent e) {
		lastNotified=getModel().getDB();
		if (isVisible() || !ignoreEventsWhenInvisible)
		{
			_note(e);
			lastDrawn=lastNotified;
		}
	}
	
	@Override
	public void setVisible(boolean visible)
	{
		super.setVisible(visible);
		if (visible && getModel().getDB()!=null)
		{
			onscreen(lastDrawn!=lastNotified);
			lastDrawn=lastNotified;
		}
	}
}